<template>
  <el-card class="form-container" shadow="never">
    <div
      v-for="(cate,index) in allResourceCate"
      :class="index===0?'top-line':null"
      :key="'cate'+cate.id"
    >
      <el-row class="table-layout" style="background: #F2F6FC;">
        <el-checkbox
          v-model="cate.checked"
          :indeterminate="isIndeterminate(cate.id)"
          @change="handleCheckAllChange(cate)"
        >{{cate.name}}</el-checkbox>
      </el-row>
      <el-row class="table-layout">
        <el-col
          :span="8"
          v-for="resource in getResourceByCate(cate.id)"
          :key="resource.id"
          style="padding: 4px 0"
        >
          <el-checkbox
            v-model="resource.checked"
            @change="handleCheckChange(resource)"
          >{{resource.name}}</el-checkbox>
        </el-col>
      </el-row>
    </div>
    <div style="margin-top: 20px" align="center">
      <el-button type="primary" @click="handleSave()">保存</el-button>
      <el-button @click="handleClear()">清空</el-button>
    </div>
  </el-card>
</template>

<script>
import { fetchAllResourceList } from "@/api/resource";
import { listAllCate } from "@/api/resourceCategory";
import { allocResource, listResourceByRole } from "@/api/role";

export default {
  name: "allocResource",
  data() {
    return {
      roleId: null,
      allResource: null,
      allResourceCate: null
    };
  },
  created() {},
  methods: {
    initdata() {
      this.roleId = this.$root.permission.allocResource.id;
      this.getAllResourceCateList();
    },
    getAllResourceList() {
      fetchAllResourceList().then(response => {
        this.allResource = response.data;
        for (let i = 0; i < this.allResource.length; i++) {
          this.allResource[i].checked = false;
        }
        this.getResourceByRole(this.roleId);
      });
    },
    getAllResourceCateList() {
      listAllCate().then(response => {
        this.allResourceCate = response.data;
        for (let i = 0; i < this.allResourceCate.length; i++) {
          this.allResourceCate[i].checked = false;
        }
        this.getAllResourceList();
      });
    },
    getResourceByCate(categoryId) {
      let cateResource = [];
      if (this.allResource == null) return null;
      for (let i = 0; i < this.allResource.length; i++) {
        let resource = this.allResource[i];
        if (resource.categoryId === categoryId) {
          cateResource.push(resource);
        }
      }
      return cateResource;
    },
    getResourceByRole(roleId) {
      listResourceByRole(roleId).then(response => {
        let allocResource = response.data;
        this.allResource.forEach(item => {
          item.checked = this.getResourceChecked(item.id, allocResource);
        });
        this.allResourceCate.forEach(item => {
          item.checked = this.isAllChecked(item.id);
        });
        this.$forceUpdate();
      });
    },
    getResourceChecked(resourceId, allocResource) {
      if (allocResource == null || allocResource.length === 0) return false;
      for (let i = 0; i < allocResource.length; i++) {
        if (allocResource[i].id === resourceId) {
          return true;
        }
      }
      return false;
    },
    isIndeterminate(categoryId) {
      let cateResources = this.getResourceByCate(categoryId);
      if (cateResources == null) return false;
      let checkedCount = 0;
      for (let i = 0; i < cateResources.length; i++) {
        if (cateResources[i].checked === true) {
          checkedCount++;
        }
      }
      return !(checkedCount === 0 || checkedCount === cateResources.length);
    },
    isAllChecked(categoryId) {
      let cateResources = this.getResourceByCate(categoryId);
      if (cateResources == null) return false;
      let checkedCount = 0;
      for (let i = 0; i < cateResources.length; i++) {
        if (cateResources[i].checked === true) {
          checkedCount++;
        }
      }
      if (checkedCount === 0) {
        return false;
      }
      return checkedCount === cateResources.length;
    },
    handleSave() {
      let checkedResourceIds = new Set();
      if (this.allResource != null && this.allResource.length > 0) {
        this.allResource.forEach(item => {
          if (item.checked) {
            checkedResourceIds.add(item.id);
          }
        });
      }
      let params = new URLSearchParams();
      params.append("roleId", this.roleId);
      params.append("resourceIds", Array.from(checkedResourceIds));
      allocResource(params).then(response => {
        this.$message({
          message: "分配成功",
          type: "success",
          duration: 1000
        });
        this.$parent.$parent.isshowresourcedia = false;
      });
    },
    handleClear() {
      this.allResourceCate.forEach(item => {
        item.checked = false;
      });
      this.allResource.forEach(item => {
        item.checked = false;
      });
      this.$forceUpdate();
    },
    handleCheckAllChange(cate) {
      let cateResources = this.getResourceByCate(cate.id);
      for (let i = 0; i < cateResources.length; i++) {
        cateResources[i].checked = cate.checked;
      }
      this.$forceUpdate();
    },
    handleCheckChange(resource) {
      this.allResourceCate.forEach(item => {
        if (item.id === resource.categoryId) {
          item.checked = this.isAllChecked(resource.categoryId);
        }
      });
      this.$forceUpdate();
    }
  }
};
</script>

<style scoped>
.table-layout {
  padding: 20px;
  border-left: 1px solid #dcdfe6;
  border-right: 1px solid #dcdfe6;
  border-bottom: 1px solid #dcdfe6;
}

.top-line {
  border-top: 1px solid #dcdfe6;
}
</style>
